[geo] Re: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

2023-02-19 Thread Andrew Lockley
As moderator of the Google group I am just responding to the the points earlier stating that iron sulfate aerosol is not suitable for the CDR list. My personal view is that greenhouse gas removal fits very closely with CDR, to the point that they are are essentially interchangeable terms. Iron

[geo] RE: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

2023-02-18 Thread Peter Flynn
I will register my disagreement: reduction of CH4 should be part of CDR; you can count on my interest. For purists, let us refer to CH4 as CO2eq. Peter Flynn Peter Flynn, P. Eng., Ph. D. Emeritus Professor and Poole Chair in Management for Engineers Department of Mechanical Engineering

Re: [geo] Re: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

2023-02-18 Thread Peter Fiekowsky
Andy- It's good to hear from you. Yes-there's a problem when one faction of society demonizes and prevents relevant science from happening. There's also a problem when respected scientists speak inaccurately, in order to prevent critical actions from happening. The examples below are

Re: [geo] Re: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

2023-02-17 Thread Michael MacCracken
Hi Andy--Growing up in 1950s with college in early 1960s, I'll admit I'm an idealist, and likely naive, but what is that old saying: "Never wrestle with a pig. You get dirty and the pig likes it." (for attribution controversy, see https://quoteinvestigator.com/2017/07/08/pig/) As noted in my

Re: [geo] Re: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

2023-02-17 Thread Andrew Revkin
Important discussion and Mike’s point about roles and sequencing has merit, but may be. missing an important negative feedback loop. That loop exists when the ethical frame of one faction in civil society, let’s say represented by EWG, is used to demonize and prohibit relevant science itself.

[geo] Re: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

2023-02-17 Thread Michael MacCracken
Dear Peter--A couple of comments: 1. What reducing methane emissions would do is to reduce the radiative forcing over the ensuing decade or two. With the heat from the higher levels having built up in the ocean, the time for recovery of the temperature (and climate)  is longer, so until the